Google Chrome warns you that a site isn't "safe" when you can input text or email. It seems on such pages hackers can also change images to help them get into your system.
To avoid that, you need an HTTPS, not an HTTP web page. Wel, that costs a lot of money and effort; and this site doesn't make any money. That's not what it's set up for.

So I have moved the FreeFind search engine and the Google search engine (serves 'em right) to this nice little ghetto of their own.
It's not secure, but I really think little harm can be done when choose you use them. However, it's up to you to do so or not.

This is what Google sent me on August 17, 2017:
Starting October 2017, Chrome (version 62) will show a “NOT SECURE” warning when users enter text in a form on an HTTP page, and for all HTTP pages in Incognito mode.
The following URLs on your site include text input fields (such as < input type="text" > or < input type="email" >) that will trigger the new Chrome warning. Review these examples to see where these warnings will appear, so that you can take action to help protect users’ data. This list is not exhaustive.(Indeed. Only the index.html page was listed)

So the list certainly was not complete. All my pages, except for pure image pages, contained these text inputs.